Closure for oil-chamber openings



Mar. 20, 1923. 1,448,718 E. J. ARMSTRONG CLOSURE FUR OIL CHAMBEROPENINGS Filed Aug. 29, 1921 I I I 9 wfii 6 Patented Mar. 20, 1923.

TED TATES :fii iTEit Q5 a EDWIN .1. Americans, or mini, *rmnsnynma,nssrenon 10s own-nurse 'ARTHUR c. VICARY, or ERIE, rnmvsmtmm. 7

CLOSURE FOR BIL-CHAMBER OPENINGS.

Application filed Alg at 29, 1921.

To a who-m it may concern:

Be it known that I, EDWIN J. Am s'rnolvo, a citizen ofthe Unitedtates,reslding at Erie. in the county of rie and State of Pennsylvania, haveinvented new and useful Improvements in Closures for Oil-ChamherOpenings, of which the following is a specification.

This invention is designed to form a convenient closure for receptaclesfor recelving oil. Where there are a great many receptacles, as withvehicles having cater. pillar tracks, the convenience of supplying oilor lubricant to the great number of joints is a matter of considerableconsequence. The present invention is designed to provide a means forclosing such cavities in a rugged manner and in a manner that may beactuated very rapidly.

The invention is illustrated as being used for closing the opening to areceptacle in a roller and for operating on a caterpillar track asfollows Fig. 1 shows a side elevation of a. caterpillar carrier with aroller mounted therein.

Fig. 2 a section on the line 22 in Fig. 1.

Fig. 3 a side elevation of a closure pin.

Fig. 4 an end View of the same.

Fig. 5 a side elevation, partly in section, of a key for actuating thepin.

Fig. 6 an end View of the key.

Fig. 7 an enlarged section of lubricator opening with the closure pin inplace and the key about to be placed in engagement therewith.

Fig. 8 a similar view showing the key brought to engagement.

1 marks the roller, 2 a shaft on which the roller is mounted, 3 thewalls of a caterpillar frame, 4.- an axial opening in the shaft 2leading from without the walls 3 to a point within the roller, and 5 aradial opening leading from the passage 4 to the cavity 1* within theroller. the cavity 1" being used for retaining the lubricant for theroller.

A pin 6 conforms to the opening 4, the opening 4 being preferablystraight but cylindrical and the pin 6 being also cylindrical but bentslightly as shown in Fig. 3 and formed of resilient material so that itmay be pressed into the opening 4 and through its own resilience willretain its position therein. The pin is provided with a disc 7supplementing the closing pin and this disc 7 extends into a socket 8 inthe Serial No, 493,472.

end of the pin. 'The jin i s ,al so 'ggcgigied w ..m. l e le "ag n ggpaq 1! 1'; alsifiatf H Y? 2 with an inward proj'ect'ion'13 giving acentour to the openin of the socket 12 similar to the contour 0 the head9. The projections 13 conform to the cut-away portion 10. The key isplaced over the head the disc 7 forming a stop and turned. This bringsthe projections 13 under portions of the head in the key-way and thuslocks the key with the pin so that the pin may be readily removed andthe key and the pin may be conveniently returned to place although thepin may be forced to place readily from the outside in any convenientmanner.

The socket 8 forms a housing for the pin and as these parts are usedwhere they are given very rough usage these pins are fully protected.The lubricant openings, therefore, are conveniently and quickly closedand are not subject to the usual breakage of such devices. The disc 7which makes a loose fit with the socket 8 operates to clean out any dirtthat may be accumulated in the socket 8 as the pin is withdrawn thusreducing the probability of carrying grit or dirt into the opening 4 asthe pin is returned.

hat I claim as new is 1. In a closure for oil chamber openings. thecombination of a chamber wall having an opening to the chamber; and aresilient closure pin in the opening, the Walls of the opening and thepin being shaped to flex the pin as it is inserted to form aspringpressed engagement between the pin and the walls of the opening,the portion of the pin within the opening being in one piece andconforming in cross section to the cross sectional shape of the opening.

2. In a closure for oil chamber openings. the combination of a chamberwall having a straight chamber opening; and a resilient closure pin insaid opening, said pin being slightly curved and subjected to fiexure asit is inserted in the opening to form a spring-pressed engagement withthe walls of the opening, the portion of the pin within the openingbeing in one piece and conforming in cross section to the crosssectional shape of the opening.

3. In a closure for oil chamber openings, the combination of a chamberwall having an opening therein with a. socket at its socket, said pinouter end; and a resilient pin in the opening, said pin having a headarranged in the socket, said pin forming a springreseed engagement withthe Walls of the opening: 4. In :1 closure for oil chamber openings, thecombination of :17 chamber wail having an opening therein with a socketat its outer end; and a resilient pin in the opening, said pin having ahead arranged in the forming a spring-pressed en 'agement with the Wallsof the opening, an said head having unequal cross dimensions, the headbeing of smaller dimensions than the socket to permit of the insertionof :1 wrenoh around the head.

5. In a t-iosm'o for oil chamber openings, the combination of a chamberwall having an opening therein with a sovket at its outer end: :1 pin inthe opening. said pin having a head arranged in the socket; ind acleaning disc (tilfliili by the pin and arranged in the socket intestimOl'iff whereof I have hereunto set my hand.

EDWIN J. ARMSTRONG.

